Apparatus for corrugating paper



June 29; 1937. D, CRAMER 2,085,417

APPARATUS FOR CORRUGATING PAPER Filed Aug. 24, 1955 2 Sheets-Sheet l L 5 Fi /11 INVENTOR Y (AW $4144 ykw-Qriym-a ATTOR N EYS June 29, 1937. J. D. CRAMER APPARATUS FOR CORRUGATING PAPER.

File d Aug 24, 1935 2 Sheets-Sheet 2 INVENTOR BY 41cm.

ATTORNEYS Patented June 29, 1937 [TED STATES PATENT OFFICE Joseph D. Cramer', Goshen,'Ind., assignor to The Chase Bag Company, New York, N. Y., a corporation of Delaware Application August 24, 1935, Serial No. 37,736

8 Claims.

My invention relates to improvements in an apparatusfor creping paper.

The object of my invention is to provide an apparatus adapted to form pleats therein longitudinally thereof whereby the paper will be elastic or stretchable transverse thereof. 7

Another object ofmy invention is to provide an apparatus of this character in which the width of the pleats can be varied and thereby increasing or decreasing the elasticity of the paper transverse thereof.

A further object of my invention is to provide an apparatus of this character adapted to form pleats in the ordinary crepe paper whereby the paper after passing through the machine is elastic or stretchable in any direction and which does not in any way affect elasticity of the crepe paper in the direction obtained by the 'creping.

A still further object of my invention is to provide a machine of this character in which the pleats are more readily formed and in which the changing of the'width of the pleats may be more readily accomplished.

A still further object of my invention is to provide a simple, cheap and more effective machine for accomplishing the heretofore mentioned results and having certain details of structure and combination of parts hereafter more fully set forth. 7 In the accompanyingdrawings:

Figure 1 is a perspective view of my improved creping machine;

Figure 2 is a longitudinal sectional view of Figure 1 showing the paper roll supporting means I broken away;

Figure 3 is a top plan view' of Figure 2 showing the chains broken away;

Figure 4 is a detail view partly in section showing the chain adjusting means;

Figure 5 is a transverse sectional view of one of the bed plates showing the paper held therein by the chain, which is shown in full lines;

Figure 6 is an enlarged plan view partly in section of the rear end of one of the bed pbtes showing the vertical pivot thereof in dotted lines;

and

Figure 7 is a longitudinal vertical sectional view of Figure 6. Referring now to the drawings I represents a rectangular flat base plate supported at the sides by the two side frames 2 and 3. The rear ends of the side frames are provided with upwardly extending arms 4 bifurcated at 5 and in which is rotatably mounted the shaft 6 of the roll I of crepe paper. The side frames 2 and 3, forward of the arms have mounted therein the shaft 1' of the idle roller 8 under which passes the transversely creped or pleated crepe paper 9 from the roll I as clearly shown in Figure 2 of the drawings. Mounted upon the base plate I side by side are 5 a number of bed plates I0 which have lower flat 4 bases II and semi-circular upper faces I2 as shown in Figure 2 of the drawings. The base plate I at its rear end is provided with upwardly extending pins I3 one for each bed plate and 10 adapted to enter recesses I4 in the bed plates whereby each bed plate is independently pivoted on said pin at its rear end thus allowing the bed plates to swing or pivot for a purpose hereinafter more fully described. 5

The upper curved faces l2 of the bed plates are provided with grooves I5 of a size to receive the chains I6. The side frames 2 and 3 above the shaft 1' have mounted therein the shaft I! which as shown in Figure 1 of the drawings extends out 20 beyond the frame 3 and may be driven in any desired manner. The said shaft between the side frames 2 and 3 is provided with a series of sprocket wheels I8 which are equal in number to the bed plates so that there is sprocket wheel 5 for each bed plate and arranged directly in rear thereof in alinement with the respective groove I 5. The sprocket wheels are held on the shaft in spaced relation by the sleeves I9 as clearly shown in Figure 3 of the drawings. 30 The side frames 2 and 3 about midway between their front and rear ends, have secured thereto the brackets 20 in which are arranged the two standards 2I and 22 which extend a considerable distance above the upper end of the bed plates. 35 Slidably mounted upon the upper end of the standards 2| and 22 are the members 23 and 24 in which is rotatably mounted the shaft 25. The members 23 and 4 are held in their adjusted position on the sta dards by means of the bolts 40 26 passing through the lugs 21 and lock nuts 28 whereby the chains are tightened; Rigidly mounted upon the shaft 25 are sprocket wheels 29 which correspond in number to the sprocket wheels I8.

Thc forward ends of the side frames 2 and 3 45 have mounted therein a shaft 30 upon which are mounted against rotation but slidably thereon, the sprocket wheels 3| which correspond in number to the sprocket wheels 29. In order to'adjust the sprocketwheels 3| longitudinally on the shaft 50 30 I arrange the sleeves 32 on the shaft between each sprocket wheel, and said sleeves being held in their adjusted position by means of the set 7 screws 33 as clearly shown in Figure 4 of the drawings; By this construction it will be seen 5 the roller 34 and in a horizontal alinement with the same is a roller 35 and between this roller and the roller 34 the crepe paper passes as will be later described. The shaft 30 is provided with a sprocket wheel 36, the shaft 25 provided with a sprocket wheel 31 and the drive shaft I! provided with the sprocket wheel 38 and passing over said sprockets is a driven chain 39 whereby all of the sprockets are driven at the same rate of speed from the shaft l'l.

From the foregoing description it will be seen that the crepe or other paper passes from the roll I under the roller 8 and up over the curved surfaces of the bed plates I0. and is forced into the grooves I therein by means of the lower flight 40 of the chains 4| which are continuously traveling as will be readily understood. The bed plates III as shown converge towards the forward ends of the frame and as the paper travels forward, it being gripped by the chains in grooves of the bed plates, the pleats 42 are formed in the paper 9 longitudinally of the roll of paper at right angles to the small pleats found in the ordinary crepe paper. The paper passes from the bed plates and from between the sleeves 32 and then between the rollers 34 and 35 when the plaits are pressed downward. Due to the converging arrangement of the bed plates the wallsof the pleats are forced inwardly and when compressed between the rollers 34 and 35 the outer faces thereof overlie oroverlap the side walls and thus giving a greater transverse resiliency.

By adjusting the sprocket wheels 3| to or from each other the relative position of the chains are changed whereby the width of the pleats are changed. It is seen that the chains traveling in the grooves IS in the bed plates [0 that they must necessarily move to or from eachother upon the adjustment of the chains to or from each other due to the pivotal connection at the rear end of the bed plates.

While I have described this apparatus adapted to form pleats in crepe paper it will be understood that it is capable of forming longitudinal pleats in any form of paper.

Having thus described my invention:

What I claim is:

, 11 A creping machine, comprising a base plate having thereon a series of plates pivoted-atthe rear end and laterally adjustable at their front end and each plate having a groove in its upper face and traveling chains adapted to travel in said grooves to form pleats in the paper passing over said bed plates. g

2. A creping machine, comprising a base plate having thereon a series of vertically disposed converging bed plates with convexed upper edges having grooves therein and traveling chains traveling in said grooves to form pleats 1n the paper passing over said bed plates.

3. A creping machine, comprising a base plate having thereon a series of vertically disposed plates, pivoted at their rear ends and adjustably supported at'their front ends and said plates having curved upper edges having a groove therein,

and chains traveling in said grooves to form pleats in the paper passing over the bed plates.

4. A creping machine, comprising a base plate having thereon a series of vertically disposed bed plates having their rear ends mounted on vertical pivots, means at the forward ends of said plates for allowing of the adjustment thereof to and from each other, said plates havingcurved upper edges having grooves therein, and traveling chains in said grooves and adapted to form pleats in the paper passingover said bed plates.

5. A creping machine, comprising a base plate having thereon a series of vertically disposed plates pivoted at one end and their opposite ends adjustably supported, said plates having curved upper edges having grooves therein, and traveling chains in said grooves and adapted to form pleats in the paper passing over said bed plate.

6. A creping machine, comprising a base plate having thereon a series of vertically disposed plates having their rear ends mounted on vertical pivots, means at the forward ends of said 7. A creping machine, comprising a base plate having thereon a series of vertically disposed plates having convexed upper faces provided with converging grooves therein, a sprocket wheel at each end of the bed plate opposite each groove, sprocket wheels arranged above the bed plate and in alinement with the first'mentioned sprocket wheels, chains passing over the upper sprocket wheels and under the sprocket wheels at the end of the bed plate and traveling in said grooves whereby the chains press pleats in the paper as it passes over the bed plates.

8. A creping machine, comprising a base plate having thereon a series of vertically disposed bed plates having their rear ends mounted on vertical pivots, said plates having convexed upper edges provided with grooves, sprocket wheels at the rear end of the bed plate opposite each groove, 

